华东理工大学学报（自然科学版）2017，Vol.43Issue(3)：297-303,7.DOI:10.14135/j.cnki.1006-3080.2017.03.001
煤粉通气料仓的优化设计
Optimization Design of Pulverized Coal Discharged from an Aerated Hopper
摘要
Abstract
The silo aeration technology,which has the advantage of low cost and low noise,has been widely used in discharging adhesive powder.The experiment of aerated discharging of pulverized coal was carried out in the self-built plexiglass hopper for determining the optimal aerated condition during the pulverized coal discharging.The result showed that aeration could promote the discharging remarkably,however,the influence of aerated height and velocity existed coupling effect.On the basis of the theory of bubble motion,the model of pulverized coal discharging was built considering the relative motion between bubbles and particles.The relationship between bubble size and aerated condition was associated based on the experiment.The calculated optimal height was H/D=12.25 and the optimal velocity was Ug=2.4Umf.There was a good agreement between calculation and experiment.The deviation of calculated discharging rate was less than ±20% while 5.56<H/D<18,Ug>Umf.关键词
煤粉料仓/优化/通气气速/通气高度/下料流率Key words
pulverized coal hopper/optimization/aerated velocity/aerated height/discharging rate分类
化学化工引用本文复制引用
付琳,陆海峰,郭晓镭,龚欣..煤粉通气料仓的优化设计[J].华东理工大学学报（自然科学版）,2017,43(3):297-303,7.基金项目
国家自然科学基金(21206041) （21206041）
中央高校基本科研业务费专项资金资助(222201717004) （222201717004）
上海市科委科研计划项目(15dz1200802) （15dz1200802）
